21 results about "Acrylate ester" patented technology

The present invention provides a preparation method for a light-heat dual-cured woodware UV varnish coating. The method comprises: uniformly mixing an acrylic acid monomer, a catalyst and a polymerization inhibitor; adding the resulting mixture to epoxy resin with a temperature of 90-120 DEG C to carry out a reaction at a certain temperature; adopting acid value detecting to monitor the extent of the reaction, wherein the epoxy acrylate (EA) is obtained when the acid value is reduced to less than 5 mg/g; adding a thermal initiator, a photoinitiator, an antifoaming agent, a wetting and dispersing agent, a thickening agent and a leveling agents to the EA, then mixing and stirring to obtain the UV varnish coating. The prepared UV varnish coating through the method provided by the present invention has the dual functions of light curing and heat curing, the surface dry can be rapidly achieved in 4-8 seconds under the light intensity of 250-400 mJ/cm<2>, the film forming and the curing can be achieved in 1-5 hours at the temperature of 50-70 DEG C. In addition, the prepared UV varnish coating has characteristics of high adhesion, good chemical corrosion resistance, high film hardness and low cost, and provides more excellent construction performance, curing method and film performance than ordinary UV-cured coatings.

The invention discloses water-based alkyd-acrylate dispersion as well as a preparation method and application thereof. The water-based alkyd-acrylate dispersion is prepared from the following raw materials: alkyd resin, an acrylate monomer, texanol, an initiator and a neutralizer, wherein the alkyd resin comprises the following raw materials: rosin, vegetable oil, polyol, phthalic anhydride, maleic anhydride, trimellitic anhydride, D40 solvent oil, an alcoholysis catalyst, an esterification catalyst and texanol. The water-based alkyd-acrylate dispersion is prepared from the raw materials through a chemical copolymerization method; wherein the particle size of the nano titanium dioxide is 178-188 nm, the Mw/Mn is 2.93 to 2.96, the grafting rate is 51-57%, the particle size is small and uniform, the stability is better, the grafting rate is high and the molecular weight distribution is more uniform; a molecular chain contains conjugated double bonds, carboxyl and other functional groups,so that the crosslinking density can be improved, the water absorption rate of a paint film is reduced, and the hardness, adhesive force, salt fog resistance and other properties of the paint film are improved.

The invention discloses a coating material for sealing the coal wall of a gob-side coal roadway. The coating material comprises 100 parts of cement, 3-6 parts of an environmentally-friendly interfacepolymer solid material and 10-15 parts of a mineral mixture and other additives, the environmentally-friendly interface polymer solid material comprises, by mass, 100 parts of an acrylate polymer solid and 8-9 parts of polyethylene synthetic resin, and the mineral mixture and other additives comprise, by mass, 5-10 parts of silica fume, 10-15 parts of common fly ash or slag, 1-2 parts of a superplasticizer and trace parts of basalt chopped fibers. The coating material is a novel composite material for guniting, and meets the requirements for plugging the coal wall of the gob-side coal roadway.

The invention provides a 3D-printed xanthan glue gel scaffold. The scaffold is prepared by the following steps: S1, dissolving xanthan gum in ultrapure water at normal temperature to prepare a xanthangum aqueous solution, adding methacrylic anhydride, performing full stirring, adjusting the pH value of a system to 8-10, continuing reaction for 3-5 hours, and dialyzing and freeze-drying the solution to obtain xanthan gum methacrylate; and S2, dissolving the xanthan gum methacrylate in sterile PBS solution containing a photoinitiator to prepare sol in a sterile environment, uniformly mixing thesol and cartilage cells, performing extrusion printing by using a 3D biological printer to form the scaffold, and irradiating the scaffold with ultraviolet light for cross-linking so as to obtain the3D-printed xanthan glue gel scaffold. The invention also provides a preparation method of the 3D-printed xanthan glue gel scaffold. According to the 3D-printed xanthan glue gel scaffold provided by the invention, the mechanical property is adjustable, the shape and the microstructure are controllable, the biocompatibility is good, and the scaffold can be compounded with cartilage cells.

The invention discloses a chlorella facial mask and a preparation method thereof, and belongs to the field of cosmetic preparation. The chlorella facial mask comprises a facial mask solution and facial mask paper, wherein the facial mask solution is prepared from the following raw materials in parts by weight: 60-99 parts of deionized water; 0.01 to 0.5 part of an acrylic acid (acrylate)/C10-30 alkanol acrylate cross-linked polymer, 0.01 to 0.2 part of transparent xanthan gum, 1 to 20 parts of propylene glycol, 0.1 to 10 parts of glyceryl polyether-26, 0.01 to 0.4 part of sodium hyaluronate and 0.01 to 0.4 part of hydrolyzed hyaluronic acid; according to the invention, the deep purification function of chlorella is utilized; a chlorella extract is introduced into cosmetics; entry into thedeep of the skin is realized, active ingredients are effectively released, subcutaneous fibrous tissues are activated, and collagen proliferation is promoted, so that the compactness of the collagen fibrous tissues is enhanced, the skin is easy to become soft, compact and elastic, chlorella factors entering the skin can be easily released, cells can be repaired, part of cells can be revived, and the cells can be protected.

The invention discloses wear-resistant and high-temperature resistant capacitor aluminum case film coating paint and a preparation method thereof. The wear-resistant and high-temperature resistant capacitor aluminum case film coating paint is mainly obtained through mixing and stirring compounds A and compounds B in raw materials according to certain weight parts, wherein the compounds A consist of polyurethane polyatomic alcohol, ethyl ketone, paraffin, isopropanol, polymethyl-benzene gadoleic acid methyl ester and attapulgite, and the compounds B consist of phenolic resin, dimethyl silicone polymer, acrylic ester copolymer modifying agents, straw ashes, silane coupling agents, 6-tertiary butyl-3-methylphenol, stearic acid and tetramethylsilane. The wear-resistant and high-temperature resistant capacitor aluminum case film coating paint has the advantages that the recipe is reasonable, the preparation method is simple, the curing effect on a capacitor aluminum case is good, a capacitor is effectively protected, the prepared film coating paint has the heat resistance performance and the wear resistance performance, and the service life of the capacitor is prolonged.

The invention discloses nitrogen-containing multi-degree-of-functionality acrylate resin. The structure of the nitrogen-containing multi-degree-of-functionality acrylate resin is shown in the following general formula namely FORMULA (I) (shown in the description), wherein R1, R2 and R3 are independently hydrogen or methyl, but R1 and R2 are not methyl at the same time; R4 is linear or branched k-valued alkyl with 2-18 carbon atoms, and the chain segment can contain a benzene ring or naphthenic group structure; m is equal to 0 or 1, n is an integer from 0 to 16, and k is equal to 2 or 3. The resin has the advantages of nitrogen-containing resin and multi-degree-of-functionality resin in photocuring application and is more excellent in application performance than an existing product; moreover, the invention provides a preparation method for the nitrogen-containing multi-degree-of-functionality acrylate resin, which is nonirritant, has no toxic or side effects, and is simple to operate and less in side reaction; the resin can be used in various photocuring fields of photocuring coatings, ink, adhesives and the like.

The invention provides a divided type dental polymeric core build-up material including a first paste (A) and a second paste (B), in which each of the pastes is a paste obtained by mixing at least a (meth)acrylate monomer, a filler having a particle size distribution within a range of 0.1 through 40 μm and an average particle diameter of 0.7 through 10 μm, and a fine particle filler having an average particle diameter of primary particles of 0.001 through 0.050 μm, and having a viscosity at 25° C. of 280 through 470 P, and in which one of the pastes includes an oxidant and the other includes a reductant and at least one of the pastes includes a photopolymerization catalyst. The divided type dental polymeric core build-up material of this invention has high operability in core build-up and forms a polymerically cured substance with a good mechanical property.

The invention belongs to the technical field of release films, and particularly relates to a preparation method of a PET release film. The preparation method comprises the following steps: (1) preparation of an anti-scratch agent: a, preparing amino-modified silicon dioxide nanoparticles; b, preparing a maleic anhydride polyacrylate precipitate; and c, carrying out a grafting amidation reaction on the amino-modified silicon dioxide nanoparticles and the maleic anhydride polyacrylate precipitate; (2) preparation of a release agent: taking organic silicon resin, polyvinyl alcohol, simethicone, a photoinitiator and the anti-scratch agent, and carrying out stirring and uniform mixing; and (3) preparation of the film: performing corona treatment on a PET base film, coating a corona surface with the release agent, and performing radiation curing by using ultraviolet light, thereby obtaining the film. The method is simple in process and easy to operate, and the PET release film prepared by the method has good scratch resistance and wear resistance, moderate peel strength, certain antistatic property and good stability.

The invention discloses a polyacrylate grafted graphene oxide plugging agent and an oil-based drilling fluid. A plugging agent used by the oil-based drilling fluid is polyacrylate grafted graphene oxide, and the polyacrylate grafted graphene oxide plugging agent is prepared from the following synthetic raw materials: graphene oxide, an amino silane compound, an acrylate compound and an acrylamide compound. The drilling fluid comprises the polyacrylate grafted graphene oxide blocking agent disclosed by the invention. The polyacrylate grafted graphene oxide is used as a blocking agent, the particle size of the polyacrylate grafted graphene oxide is approximately distributed between 60 nm and 1200 nm, nano apertures in a shale stratum can be effectively blocked, and therefore the well wall can be effectively stabilized, and collapse can be prevented; the plugging agent has small influence on the performance of the drilling fluid and is beneficial to reducing the filter loss of the drilling fluid, and the oil-based drilling fluid used by the plugging agent has good rheological property, water loss wall-building property, plugging property and the like under the shale formation condition.

The invention discloses a high-temperature and high-pressure double-seal double-adjustment needle valve which comprises a valve body, a valve rod and a valve deck. The outer surface of the valve rod is coated with an anti-corrosion coating, and the anti-corrosion coating is prepared from, by weight, 25-30 parts of acrylate modified epoxy resin dispersion liquid, 10-15 parts of a curing agent, 6-8parts of a lubricant, 1-2 parts of a coupling agent, 2-3 parts of a wetting agent, 0.5-1 part of a leveling agent, and 40-50 parts of deionized water. After the anti-corrosion coating forms a film, capillary micropores do not exist, so that the corrosion of water, oxygen and chemicals to metals can be prevented, and a good anticorrosive effect is achieved; the adhesiveness of the anti-corrosion coating to the valve rod is good, and stripping of a paint film can be reduced; and in addition, the paint film of the anti-corrosion coating is tough and wear-resistant, has favorable strength, toughness and wear resistance, can prolong the service life of the anti-corrosion coating, and enhances the anticorrosive effect.

The invention provides a PMMA-aluminum hydroxide-organophosphorus acrylic composite base material and a preparation method thereof. The composite base material comprises aluminum hydroxide ultrafine microspheres subjected to surface hydrophobic modification through a silane coupling agent and a titanate coupling agent and copolymer resin, and the mixing ratio of the aluminum hydroxide ultrafine microspheres subjected to surface hydrophobic modification to the copolymer resin is (21-27):(7-3). In the prior art, aluminum hydroxide powder has high surface activity and large organic matter adsorption capacity, and especially has high adsorption capacity for hydrophilic acrylate copolymer resin; through modification of the aluminum hydroxide powder, the aluminum hydroxide powder shows high hydrophobicity so that 80% or above of aluminum powder can be added into acrylate copolymer resin to prepare an acrylic artificial stone composite material with the low cost and the high flame retardanceand heat resistance; phosphorus-containing acrylate is introduced into acrylic artificial stone resin through a bulk copolymerization method, so that after the novel copolymer resin is composited withthe modified aluminum powder, more excellent flame retardance can be achieved.

The invention discloses a self-healing branched polyethylene diamine hydrogel microcapsule composite material as well as a preparation method and application thereof, and belongs to the technical field of new energy materials. The self-healing hydrogel microcapsule is formed by wrapping a carbonaceous microsphere and branched polyethylene diamine hydrogel with a trimethylolpropane ethoxylate triacrylate shell, and then the active composite material of the magnesium ion battery positive electrode is obtained by mixing nano vanadium pentoxide and the self-healing hydrogel microcapsule. After thehydrogel with the self-healing function is released, cracks of the positive plate of the magnesium ion battery can be accurately healed, and the conductive carbon spheres play a bridge role in electrode cracks, so that the stability of an electron transport channel and an electrode is effectively enhanced. Therefore, the conductive carbon spheres and the branched polyethylenediamine hydrogel generate a synergistic effect, electron conduction healing can be achieved, good stability after self-healing is guaranteed, and the super-long service life of the battery under the condition of rapid charging and discharging circulation is achieved.

The invention discloses an acrylamide-based copolyester slurry and a preparation method thereof. The preparation method comprises the following steps: preparing an acrylamide aqueous solution and an acrylate emulsion; pre-polymerizing the acrylate emulsion to obtain a pre-polymerized emulsion of which the acrylate monomer conversion rate is within a preset range; and adding an acrylamide aqueous solution, an oxidizing agent and a reducing agent into the pre-polymerized emulsion, and carrying out a copolymerization reaction to obtain the acrylamide-based copolyester slurry. By adopting a step-by-step polymerization method, the generation of acrylamide and acrylate homopolymers in the reaction process can be reduced, and the problem of difficult copolymerization or implosion caused by different reactivity rates in the acrylamide and acrylate polymerization process is solved. The prepared acrylamide copolyester slurry has good storage stability, has strong adhesion to polyester/cotton fiber yarns, is degradable and does not cause environmental pollution.